Finding the Fourth Proportional to 142,007.42, 195,964.84 and 88,280.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,007.42 : 195,964.84 = 88,280.12 : x
2. Step 2: Convert to fraction form
   142,007.42/195,964.84 = 88,280.12/x
3. Step 3: Cross multiply
   142,007.42x = 195,964.84 × 88,280.12
4. Step 4: Simplify right side
   142,007.42x = 17,299,799,590.98
5. Step 5: Solve for x
   x = 17,299,799,590.98/142,007.42
6. Step 6: Final answer
   x = 121,823.21